<head>
<title>Cylindrical Equal Area</title>
</head>
<body>

<h1>Cylindrical Equal Area</h1>

<table border>

<td>Name
<td>Cylindrical Equal Area
<tr>

<td>Alias
<td>Normal Authalic Cylindrical (FME)
<tr>

<td>Alias
<td>Lambert Cylindrical Equal Area
<tr>

<td>Alias
<td>Behrmann (standard parallel = 30)
<tr>

<td>Alias
<td>Gall Orthographic (standard parallel = 45)
<tr>

<td>Alias
<td>Peters (approximated by Gall Orthographic)
<tr>

<td>EPSG Code
<td>-
<tr>

<td>GeoTIFF Code
<td> CT_CylindricalEqualArea (28)
<tr>

<td>OGC WKT Name
<td>Cylindrical_Equal_Area
<tr>

<td>Supported By
<td>OGC WKT (unofficial), PROJ.4, Mapinfo
<tr>

</table>

<h3>Projection Parameters</h3>

<table border>
<th>Name
<th>EPSG #
<th>GeoTIFF ID
<th>OGC WKT
<th>Units
<th>Notes
<tr>

<td> Central Meridian
<td> 
<td> NatOriginLong
<td> central_meridian
<td> Angular
<td>
<tr>

<td> Standard Parallel
<td> 
<td> StdParallel1
<td> standard_parallel_1
<td> Angular
<td> Defaults to zero. 
<tr> Known as latitude of true scale in PROJ.4

<td>False Easting
<td>
<td>FalseEasting
<td>false_easting
<td>Linear
<td>
<tr>

<td>False Northing
<td>
<td>FalseNorthing
<td>false_northing
<td>Linear
<td>
<tr>
</table>

<h3>Notes</h3>

This is classified as a cylindrical and equal area projection, as one might
expect from the name.  There does not seem to be an EPSG equivelent.  The GeoTIFF
code was added Feb 2005, and so is not likely widely supported.<p>

For documentation, the Cylindrical Equal-Area projection is discussed in
Snyder, Map Projections -- a Working Manual (1987) on pg 76ff.<p>

<h3>PROJ.4 Organization</h3>

<pre>
  +proj=cea +lon_0=<i>Central Meridian</i>
            +lat_ts=<i>Standard Parallel</i>
            +x_0=<i>False Easting</i>
            +y_0=<i>False Northing</i>
</pre>

</b>

 </body>





